Functionalized N-doped hollow graphitic carbon-nanotube/carbon -nanosphere composite

Xuan Li, Manxi Wang, Ruiling Li, Chuanping Li, Jiabo He, Min Qiu, Liren Xiao, Zhenhai Wen, Qingrong Qian, Xiaoyan Li, Qinghua Chen, Ziqiang Wang, Yiu Wing Mai, Yuming Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

Functionalized and/or heteroatom-doped nanostructured hollow graphitic carbonaceous composites have stimulated extensive interest in many applications due to their distinctive structures and physical properties. However, there are still some amorphous carbons in the graphitic composite matrix, which limit their broader usage. Herein, we report a simple acid-based hydrothermal process to not only selectively decompose the residual amorphous carbon but also functionalize the resulting graphitic hybrid carbon, thereby forming the functionalized N-doped hollow graphitic carbon-nanotube/carbon-nanosphere hybrids. As a lithium-ion battery (LIB) anode, this material has an exceptional reversible capacity of ~990 mAh g−1 at 0.1 A g−1 and remains at ~850 mAh g−1 after 240 cycles, hence displaying great potential as high-performance carbon-based anodes for LIBs.

Original languageEnglish
Article number100578
JournalComposites Communications
Volume23
DOIs
Publication statusPublished - Feb 2021
Externally publishedYes

Keywords

  • Acid-based hydrothermal process
  • Anode
  • Heteroatom-doping
  • Hollow carbonaceous composite

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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